Q: What are the prime factors of the number 687,112,230?

 A: 2, 3, 5, 7, 59, 55457

Why are those the prime factors of the number 687,112,230?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 687,112,230

687,112,230
Factor Arrows
2343,556,115
Factor Arrows
3114,518,705
Factor Arrows
522,903,741
Factor Arrows
73,271,963
Factor Arrows
5955,457

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 7, 59, 55457

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 59 x 55,457 = 687,112,230

This can also be written as 21 x 31 x 51 x 71 x 591 x 55,4571 = 687,112,230

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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